- Hard water waste a lot of soap
- Hard water destroys a lot of textile materials
Uses of water: we look at uses of water under three main groups;
- Biological uses
- Plants use water to produce their food
- Water is used by man for the digestion of food
- Economic importance
- We use water to cook
- We use water to drink
- We use water for cleaning
- Industrial uses
- We use water in industries for cooling
- Used for washing dresses and utensils or equipments
